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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2263087Generated: November 1, 2026

Pyridine → N-(5-nitropyrimidin-2-yl)acetamide

https://huagongshe.com/reaction/2263087

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPyridineHCID 1049—
ReactantAcetyl chlorideHCID 6367—
Reactant5-Nitropyrimidin-2-amineHCID 76490—
Catalyst4-(Dimethylamino)pyridineHCID 14284—
SolventAcetonitrileHCID 6342—
ProductN-(5-nitropyrimidin-2-yl)acetamideHCID 4507177031.3%

Reaction Conditions

Temperature100 °C

Reaction Steps

To a solution of 2-amino-5-nitropyrimidine (3.00 g, 21.4 mmol), 4-dimethylaminopyridine (2.61 g, 21.4 mmol) and pyridine (10.4 ml, 128 mmol) in acetonitrile (100 ml) was added acetyl chloride (3.04 ml, 42.8 mmol), the mixture was stirred at 100° C. for 1 hour. To the mixture was added acetyl chloride (2.00 ml, 28.1 mmol) and the mixture was stirred at 100° C. for 12 hours. The reaction mixture was poured into ice-water and the mixture was extracted with ethyl acetate. The extract was washed with water and dried over anhydrous magnesium sulfate. The solvent was distilled off under reduced pressure and the residue was recrystallized from a mixed solvent of hexane and ethyl acetate to obtain the desired product (1.22 g, 31.3%) as a solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07851473B2
Source datasetuspto-grants-2010_12
ORD IDord-fed5f2edd2c44344a5c56c536eafc008
Source noteuspto-grants-2010_12